A large BGP routing leak that occurred last night disrupted the connectivity for thousands of major networks and websites around the world. The leak occurred in Vodafone’s autonomous network (AS55410) based in India. Some U.S. companies, including Google, were also affected as a result of this incident which appears to have lasted from a little before 13:50 to around 14:00 UTC on April 16, 2021. BGP or Border Gateway Protocol is what makes the modern-day internet work.
Source: https://www.bleepingcomputer.com/news/security/major-bgp-leak-disrupts-thousands-of-networks-globally/